| Deutsch | deu-000 |
| Bookcrossing | |
| Afrikaans | afr-000 | Dwaalboeke |
| bălgarski ezik | bul-001 | Bookcrossing |
| català | cat-000 | Bookcrossing |
| català | cat-000 | Passallibres |
| dansk | dan-000 | BookCrossing |
| English | eng-000 | BookCrossing |
| English | eng-000 | bookcrossing |
| Esperanto | epo-000 | Bookcrossing |
| suomi | fin-000 | Bookcrossing |
| français | fra-000 | Bookcrossing |
| italiano | ita-000 | BookCrossing |
| 日本語 | jpn-000 | ブッククロッシング |
| 한국어 | kor-000 | 북크로싱 |
| Nederlands | nld-000 | Bookcrossing |
| فارسی | pes-000 | کتاب در گردش |
| polski | pol-000 | Bookcrossing |
| português | por-000 | BookCrossing |
| русский | rus-000 | Буккроссинг |
| русский | rus-000 | буккроссинг |
| español | spa-000 | Bookcrossing |
| српски | srp-000 | Буккросинг |
| српски | srp-000 | буккросинг |
| svenska | swe-000 | BookCrossing |
| Türkçe | tur-000 | Gezgin Kitap |
| українська | ukr-000 | буккроссинг |